Sea to Summit Triathlon

JUL
25
2026
A multi-leg event at Spring Hill Recreation Area that combines a 1.2-mile swim, a 95-mile bike, and a run finishing with a climb to the tallest mountain in the Northeastern United States, with porter support for athletes.
Sat 25 Jul 2026
Swim Ride Run and Climb

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Sea to Summit Triathlon

The Sea to Summit Triathlon is organized by New England Endurance Events at Spring Hill Recreation Area in South Berwick, Maine. The event combines core elements of triathlon with challenges drawn from adventure racing and is described by the organizer as aimed at serious athletes.

The race consists of multiple sequential legs, including:

  • Swim: 1.2 miles
  • Bike: 95 miles
  • Run and climb to the tallest mountain in the Northeastern United States

Athletes use a designated support person, called a porter, who assists them during the event. The format therefore includes logistics and teamwork between the athlete and their support designate.

Past participant reviews referenced coordination and communication, event support on the mountain, porter involvement, and post-race meal and race items. Reviews also noted a minimalist but present safety and volunteer presence on the mountain and described a supportive atmosphere among competitors and porters. Visit the organization's website for the most recent information.

Swim
Ride
Run and Climb
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